Ajax

Both IE and opera support ajax well. (This is due to prototype. js encapsulation) This example uses a file to record chat records and implement simple chat rooms. In actual use, you must pay attention to the processing of large user concurrency,

Var cpAD = new Array ();Var cpADlink = new Array ();Var cpADmsg = new Array ();// Five arrays are defined.Var adNum = 5;Var coll = 0;// Ad/1.html the ad address you linked at that timeCpAD [0] = "banners/mba.gif ";CpADlink [0] = "ad/1.html ";CpADmsg

Function initDetailProduct (ProductCode, AbstractCode, Amount, Size, searchType){$ J. post ("NewProductHandle. aspx", {ProductCode: ProductCode, searchType: searchType}, function (data ){Eval (data );Var productGroupID = document. getElementById

Js unlimited classification menu : The three files are composed of one, test.htm css.css js. js The code of the test.html file is: Untitled Page MSDN I will not talk about it here, as long as it will be okay for html. If you don't

163 check username validity.

Many times we will see the text on the webpage, which can be edited as long as we click it. Next I will introduce a Summary of the javascript Mouse clicking text to text box code, for more information, see. The Code is as follows: Copy

In js, we need to check whether the variable is a number. We can directly use the isNaN function. The isNaN function judges the opposite. If you input a number, it returns false, not the data, you can clear this point. IsNaN Function IsNaN

In the past, we used SWFupload to upload files directly, and then the parameters were processed separately. Next I will introduce other parameters for passing the form using SWFupload. On the upload page, the value is always not obtained. Later, a

Common cross-origin requests in js include four types: window. name, JSONP, jQuery. the first method is to use iframe, the second and third methods use json data, and the last one is xml file operations. Here is a brief introduction. 1. window. name

This article will introduce some performance optimization methods when using js event seeding loops. Below I will introduce some basic JS knowledge, it was found that the JS loop is significantly different from the loop in other languages, and then

This article will share with you an article on js variables, strings, conditional statements, and event Learning notes. For more information, see reference. Variable You can also use an instance to learn the related syntax of variables:

For many times, we do not know how to judge whether a variable is an array or an object. Next I will give you a detailed introduction to js to determine whether a variable is an object or an array instance. All typeof objects are returned. In

This article will give you a detailed description of how to find the array and the maximum value in js. Next I will introduce several examples to you.   The Code is as follows: Copy code In addition, a method is

This article introduces how to delete array elements by using javascript and reduce the length of the array. Example 1 The Code is as follows: Copy code /*** Deleting array elements by Using values** @ Param mixed value

Window. open is a js command to open a new window. It is often used to open a window. However, many browsers have used Windows. open is blocked. Next I will introduce the solution to window. the method of blocking open. First look at a common window.

PNG images are transparent in other browsers and can have a perfect example of transparent background effect without any processing. However, ie6 cannot recognize the png Image transparency function in ie6, next I will introduce several methods for

In js, RegExp objects have three methods: test (), exec (), and compile (). They can all be used to find strings, the following is a summary of their usage. Example 1: exec () 1, The Code is as follows: Copy code

To determine whether a user is a mobile browser is actually very simple. We only need to obtain the userAgent information of the browser, and then we can determine and match the userAgent to determine whether the user is a mobile browser. Recently,

The cross-origin issue has always been a tangled issue. Next I will summarize the principles and Solutions of ajax cross-origin access and JQuery cross-origin. I hope this method will help you. Cross-origin of JSThe problem is that many programmers